Meta Skills: Skill Gen

/skill-gen is the second skill from Crafter Station .

npx skills add crafter-station/skills --skill skill-gen -g

Works with Claude Code, Codex, Cursor, Copilot, and 10+ more agents .

The Problem

I needed skills for Clerk’s API (webhooks, orgs, custom flows).

Option 1: Read docs, write SKILL.md by hand, hope I got the frontmatter right.

Option 2: Point an agent at the docs and let it extract what matters.

I picked option 2.

How It Works

Give it a URL. It asks 3 clarifying questions (focus areas, use cases, workflow priorities). Then hits Firecrawl’s agent endpoint to extract structured content.

Out comes a skill with:

• SKILL.md (frontmatter + instructions)
• references/ (API patterns, examples, auth flows)
• Proper structure (validated, ready to use)

Ask Claude: "Create a skill from clerk.com/docs/guides/development/webhooks"

Claude runs /skill-gen, asks what endpoints matter, extracts the patterns, writes the skill. Done.

Powered by Firecrawl

Uses Firecrawl's agent endpoint for intelligent document extraction. The agent understands structure, not just scraping HTML.

Learn more about Firecrawl

Full source on GitHub .

Why This Matters

Skills are context engineering. They teach agents domain knowledge the model doesn’t have.

But writing them from docs is grunt work:

• Read through pages
• Extract patterns
• Structure as SKILL.md
• Validate frontmatter
• Hope you didn’t miss something

skill-gen automates the grunt work. You get the skill, the agent gets domain knowledge.

The Meta Part

This is the first skill in a new category: meta.

Agent ecosystems need tools to build tools. skill-gen auto-generates skills from docs. Next:

• skill-debugger (why didn’t it trigger?)
• skill-analyzer (token usage, activation patterns)
• skill-marketplace (publish, discover, version)

Infrastructure for AI-native development.

Results

Used it to scaffold Clerk skills (clerk-webhooks, clerk-orgs, clerk-custom-ui). Gets you a solid starting point in 2-3 minutes.

Before: 30 minutes to extract patterns and write frontmatter.

After: 2 minutes for scaffold, 10 minutes to refine.

Requirements

You need Firecrawl for this to work:

1. Get a free API key at firecrawl.dev (5 free daily runs)
2. Set up the Firecrawl MCP server
3. Add your key to the MCP config

Each skill generation uses 5-15 credits on the free tier, 15-50 credits on pro. The free tier is enough to generate a few skills per day.

Try It

npx skills add crafter-station/skills --skill skill-gen -g

Then ask Claude: "Research Stripe webhooks and create a skill" or "Create a skill from stripe.com/docs/webhooks"

What’s Next

Second skill in the Crafter Station marketplace:

1. intent-layer (context engineering) - AGENTS.md infrastructure
2. skill-gen (meta) - Auto-generate skills from docs

More coming soon.

Credits

Inspired by Firecrawl’s guide on Claude Code skills. Uses Firecrawl’s agent endpoint for structured extraction.

Built in Peru 🇵🇪, tested on Clerk skills .

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Follow @RaillyHugo for more on context engineering.